{"api_version":"1","generated_at":"2026-04-23T09:53:08+00:00","cve":"CVE-2021-28831","urls":{"html":"https://cve.report/CVE-2021-28831","api":"https://cve.report/api/cve/CVE-2021-28831.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-28831","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28831"},"summary":{"title":"CVE-2021-28831","description":"decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-03-19 05:15:00","updated_at":"2023-11-07 03:32:00"},"problem_types":["CWE-755"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/","name":"FEDORA-2021-2024803354","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 32 Update: busybox-1.32.1-1.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd","name":"https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd","refsource":"MISC","tags":[],"title":"busybox - BusyBox: The Swiss Army Knife of Embedded Linux","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html","name":"[debian-lts-announce] 20210401 [SECURITY] [DLA 2614-1] busybox security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 2614-1] busybox security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/","name":"FEDORA-2021-2024803354","refsource":"","tags":[],"title":"[SECURITY] Fedora 32 Update: busybox-1.32.1-1.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/","name":"FEDORA-2021-e82915eee1","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: busybox-1.33.0-3.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202105-09","name":"GLSA-202105-09","refsource":"GENTOO","tags":[],"title":"BusyBox: Denial of service (GLSA 202105-09) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/","name":"FEDORA-2021-d20c8a4730","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: busybox-1.32.1-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/","name":"FEDORA-2021-d20c8a4730","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: busybox-1.32.1-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/","name":"FEDORA-2021-e82915eee1","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: busybox-1.33.0-3.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28831","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28831","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"28831","vulnerable":"1","versionEndIncluding":"1.32.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"busybox","cpe5":"busybox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28831","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28831","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"32","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28831","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28831","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-28831","qid":"178490","title":"Debian Security Update for busybox (DLA 2614-1)"},{"cve":"CVE-2021-28831","qid":"183151","title":"Debian Security Update for busybox (CVE-2021-28831)"},{"cve":"CVE-2021-28831","qid":"198599","title":"Ubuntu Security Notification for BusyBox Vulnerabilities (USN-5179-1)"},{"cve":"CVE-2021-28831","qid":"281067","title":"Fedora Security Update for busybox (FEDORA-2021-2024803354)"},{"cve":"CVE-2021-28831","qid":"281068","title":"Fedora Security Update for busybox (FEDORA-2021-d20c8a4730)"},{"cve":"CVE-2021-28831","qid":"281430","title":"Fedora Security Update for busybox (FEDORA-2021-2024803354)"},{"cve":"CVE-2021-28831","qid":"281431","title":"Fedora Security Update for busybox (FEDORA-2021-e82915eee1)"},{"cve":"CVE-2021-28831","qid":"281432","title":"Fedora Security Update for busybox (FEDORA-2021-d20c8a4730)"},{"cve":"CVE-2021-28831","qid":"352276","title":"Amazon Linux Security Update for busybox: ALAS-2021-1496"},{"cve":"CVE-2021-28831","qid":"500081","title":"Alpine Linux Security Update for busybox"},{"cve":"CVE-2021-28831","qid":"501386","title":"Alpine Linux Security Update for busybox"},{"cve":"CVE-2021-28831","qid":"501732","title":"Alpine Linux Security Update for busybox"},{"cve":"CVE-2021-28831","qid":"503875","title":"Alpine Linux Security Update for busybox"},{"cve":"CVE-2021-28831","qid":"670764","title":"EulerOS Security Update for busybox (EulerOS-SA-2021-2522)"},{"cve":"CVE-2021-28831","qid":"670788","title":"EulerOS Security Update for busybox (EulerOS-SA-2021-2546)"},{"cve":"CVE-2021-28831","qid":"710106","title":"Gentoo Linux BusyBox Denial of service vulnerability (GLSA 202105-09)"},{"cve":"CVE-2021-28831","qid":"751281","title":"SUSE Enterprise Linux Security Update for busybox (SUSE-SU-2021:3531-1)"},{"cve":"CVE-2021-28831","qid":"751290","title":"OpenSUSE Security Update for busybox (openSUSE-SU-2021:3531-1)"},{"cve":"CVE-2021-28831","qid":"751304","title":"OpenSUSE Security Update for busybox (openSUSE-SU-2021:1408-1)"},{"cve":"CVE-2021-28831","qid":"751624","title":"SUSE Enterprise Linux Security Update for busybox (SUSE-SU-2022:0135-1)"},{"cve":"CVE-2021-28831","qid":"751633","title":"OpenSUSE Security Update for busybox (openSUSE-SU-2022:0135-1)"},{"cve":"CVE-2021-28831","qid":"752794","title":"SUSE Enterprise Linux Security Update for busybox (SUSE-SU-2022:3959-1)"},{"cve":"CVE-2021-28831","qid":"752903","title":"SUSE Enterprise Linux Security Update for busybox (SUSE-SU-2022:4253-1)"},{"cve":"CVE-2021-28831","qid":"900163","title":"CBL-Mariner Linux Security Update for busybox 1.32.0"},{"cve":"CVE-2021-28831","qid":"901718","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for busybox (6342-1)"},{"cve":"CVE-2021-28831","qid":"903184","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for busybox (3988)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-28831","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd","refsource":"MISC","name":"https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd"},{"refsource":"FEDORA","name":"FEDORA-2021-e82915eee1","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/"},{"refsource":"FEDORA","name":"FEDORA-2021-d20c8a4730","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/"},{"refsource":"FEDORA","name":"FEDORA-2021-2024803354","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/"},{"refsource":"MLIST","name":"[debian-lts-announce] 20210401 [SECURITY] [DLA 2614-1] busybox security update","url":"https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html"},{"refsource":"GENTOO","name":"GLSA-202105-09","url":"https://security.gentoo.org/glsa/202105-09"}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","version":"3.1"}}},"nvd":{"publishedDate":"2021-03-19 05:15:00","lastModifiedDate":"2023-11-07 03:32:00","problem_types":["CWE-755"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*","versionStartIncluding":"1.32.0","versionEndIncluding":"1.32.1","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"28831","Ordinal":"204007","Title":"CVE-2021-28831","CVE":"CVE-2021-28831","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"28831","Ordinal":"1","NoteData":"decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"28831","Ordinal":"2","NoteData":"2021-03-19","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"28831","Ordinal":"3","NoteData":"2021-05-26","Type":"Other","Title":"Modified"}]}}}